Cistern.



No. 757,253.. PATENTED APR. 12, 1904..

G. w. BOYER.

GISTERN APPLIUATIQH FILED AUG. 10, 1903. N0 MODEL. 1

2 SHEETS-SHEET 1.

PATENTED APR. 12', 1904.

G. W. BUYER.

GISTERN.

APPLIOATION nun AUG.'10, 1902..

2 SHEETS-SHEET 2.

ho MODEL.

UNITED STATES Patented April 12, 1904.

PATENT OFFICE.

SPECIFICATION forming part of Letters Patent No. 757,253, dated April12, 1904;

I Application filed August 10, 1903. Serial No. 168,974. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. BOYER, a citizen of the United States,residing at Desoto, in the county of Jefferson and State of Missouri,have invented certain new and useful Improvements in Cisterns andFilters, of which the following is a specification.

The cistern embodied in this invention is of sectional construction, theseveral sections comprising the cistern being previously molded fromplastic material, preferably, and permitted to harden. The sections areprovided with interlocking means, so as to mutually support each otherafter they have been placed in position.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means foreffecting the result reference is to be had to the following descriptionand drawings hereto attached.

While the essential and characteristic featu res of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in whicha Figure1 is a side elevation of a cistern constructed in accordance with theinvention. Fig. 2 is a transverse sectional view about on the line X Xof Fig. 1. Fig. 3 is a horizontal sectional view of the cistern, showingthe manner of placing the sections in position.

i Fig. 4: is a detail perspective view of one of the sections, showingthe interlocking elements and receiving-recesses thereon.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The cistern may be built to any height and may be located in anexcavation in the ground or disposed upon the surface thereof.

The cistern illustrated is of approximately cylindrical form and isdesigned more especially for containing water in the capacity of areservoir therefor, though it will be obvious that the cistern may beused for various other purposes. The sections 1 of the cistern are ofapproximately rectangular form in elevation, and the lowermost tier ofsections should rest upon a solid base composed of suitable material,such as concrete. Each. sec

tion is provided upon opposite vertical edges with a plurality of pins 2and recesses 3, respectively, the pins 2 and the recesses 3 being alsodisposed upon the lower and upper horizontal edges, respectively. Therecesses 3 are elongated, so that as the upper tier of sections areplaced in position the pins 2, carried by each supporting-section, mayinterlock with the recesses upon the adjacent sections by ontrance ofthe pins upon the lower edge of the section with the pins and therecesses upon the upper side edge portions of the sections. As soon asthe pins upon the side edge portions of the upper section have enteredthe recesses 3 of the adjacent section the pins upon the lower edge ofthe sections will enter the recesses upon the upper edges, the saidupper sections dropping vertically in this movement. The pins upon theupper edges are preferably two in number and located adjacent the sideedges at a determined point thereon, and the disposal of the recessesupon the lower edges of the upper sections is determined by thepositions of the pins, so that the latter may interlock with and holdthe upper tier of sections together. The meeting vertical edges of theupper tier of sections are located intermediate the meeting edges of thelower tier of sections.

. The crown-sections of the cistern are provided with anoverflow-opening 4: and a feedopening 5, and suitable filtering meansareprovided upon the cistern. The filtering means aforesaid comprises areceptacle 5 and a perforated bottom 6 and contains a filtering medium,such as charcoal and gravel. The receptacle is provided with a cover 7,and a feed-pipe 8 feeds into the same. A semicircular pipe 9 is.,located within the filter to spread the water as it enters thereceptacle 5 so that it may be thoroughly filtered.

The sections are placed together in the manner before described, and thelast key of sections are thrown into position in the manner shown inFig. 3, the pins 2 permitting of this action. I

Having thus described the invention, what is claimed as new is- Acistern composed of superposed courses, to prevent any movement thereofafter being each course comprising a plurality of sections, assembled.the sections of one course breaking joint with In testimony whereof Iaffix my signature in the sections of the next adjacent course, dowelpresence of two witnesses. 5 connections between the vertical edges ofthe his sections to prevent inward or outward dis- GEORGE X W BOYERplacement thereof and having vertical play to mark admit of a limitedvertical movement of the Witnesses: sections, and dowel connectionsbetween the C. C. WALDO,

I0 abutting ends of the upper and lower sections C. MILLER.

